Question

Which of these sentences from the sample conclusion. reiterates the controversy being addressed in this essay?

A. How schools and classroom teachers manage such devices, however, is still very much up for debate.

B. [A]llow cellphones, but...[punish] unwarranted intrusions into academic time.

C. [L]ike the buns on chewing gum and passing notes, barring...rarely means such a ban is observed.